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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-messages-list</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-messages-list.html">

<script>void(0);</script>

<test-fixture id="basic">
  <template>
    <gr-messages-list></gr-messages-list>
  </template>
</test-fixture>

<script>

  const randomMessage = function(opt_params) {
    const params = opt_params || {};
    const author1 = {
      _account_id: 1115495,
      name: 'Andrew Bonventre',
      email: 'andybons@chromium.org',
    };
    return {
      id: params.id || Math.random().toString(),
      date: params.date || '2016-01-12 20:28:33.038000',
      message: params.message || Math.random().toString(),
      _revision_number: params._revision_number || 1,
      author: params.author || author1,
    };
  };

  const randomAutomated = function(opt_params) {
    return Object.assign({tag: 'autogenerated:gerrit:replace'},
        randomMessage(opt_params));
  };

  suite('gr-messages-list tests', () => {
    let element;
    let messages;
    let sandbox;

    const getMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message');
    };

    setup(() => {
      stub('gr-rest-api-interface', {
        getConfig() { return Promise.resolve({}); },
        getLoggedIn() { return Promise.resolve(false); },
      });
      sandbox = sinon.sandbox.create();
      element = fixture('basic');
      messages = _.times(3, randomMessage);
      element.messages = messages;
      flushAsynchronousOperations();
    });

    teardown(() => {
      sandbox.restore();
    });

    test('show some old messages', () => {
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      element.messages = _.times(26, randomMessage);
      flushAsynchronousOperations();

      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 20);
      assert.equal(element.$.incrementMessagesBtn.innerText.trim(),
          'Show 5 more');
      MockInteractions.tap(element.$.incrementMessagesBtn);
      flushAsynchronousOperations();

      assert.equal(getMessages().length, 25);
      assert.equal(element.$.incrementMessagesBtn.innerText.trim(),
          'Show 1 more');
      MockInteractions.tap(element.$.incrementMessagesBtn);
      flushAsynchronousOperations();

      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 26);
    });

    test('show all old messages', () => {
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
      element.messages = _.times(26, randomMessage);
      flushAsynchronousOperations();

      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      assert.equal(getMessages().length, 20);
      assert.equal(element.$.oldMessagesBtn.innerText, 'Show all 6 messages');
      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      assert.equal(getMessages().length, 26);
      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('message count respects automated', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText, 'Show 1 message');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();

      assert.isTrue(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('message count still respects non-automated on toggle', () => {
      element.messages = _.times(10, randomMessage)
          .concat(_.times(11, randomAutomated));
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText, 'Show 1 message');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();

      assert.equal(element.$.oldMessagesBtn.innerText, 'Show 1 message');
      assert.isFalse(element.$.messageControlsContainer.hasAttribute('hidden'));
    });

    test('show all messages respects expand', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      MockInteractions.tap(element.$$('#collapse-messages')); // Expand all.
      flushAsynchronousOperations();

      let messages = getMessages();
      assert.equal(messages.length, 20);
      for (const message of messages) {
        assert.isTrue(message._expanded);
      }

      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      messages = getMessages();
      assert.equal(messages.length, 21);
      for (const message of messages) {
        assert.isTrue(message._expanded);
      }
    });

    test('show all messages respects collapse', () => {
      element.messages = _.times(10, randomAutomated)
          .concat(_.times(11, randomMessage));
      flushAsynchronousOperations();

      MockInteractions.tap(element.$$('#collapse-messages')); // Expand all.
      MockInteractions.tap(element.$$('#collapse-messages')); // Collapse all.
      flushAsynchronousOperations();

      let messages = getMessages();
      assert.equal(messages.length, 20);
      for (const message of messages) {
        assert.isFalse(message._expanded);
      }

      MockInteractions.tap(element.$.oldMessagesBtn);
      flushAsynchronousOperations();

      messages = getMessages();
      assert.equal(messages.length, 21);
      for (const message of messages) {
        assert.isFalse(message._expanded);
      }
    });

    test('expand/collapse all', () => {
      let allMessageEls = getMessages();
      for (const message of allMessageEls) {
        message._expanded = false;
      }
      MockInteractions.tap(allMessageEls[1]);
      assert.isTrue(allMessageEls[1]._expanded);

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isTrue(message._expanded);
      }

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isFalse(message._expanded);
      }
    });

    test('expand/collapse from external keypress', () => {
      MockInteractions.tap(element.$$('#collapse-messages'));
      let allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isTrue(message._expanded);
      }

      // Expand/collapse all text also changes.
      assert.equal(element.$$('#collapse-messages').textContent.trim(),
          'Collapse all');

      MockInteractions.tap(element.$$('#collapse-messages'));
      allMessageEls = getMessages();
      for (const message of allMessageEls) {
        assert.isFalse(message._expanded);
      }
      // Expand/collapse all text also changes.
      assert.equal(element.$$('#collapse-messages').textContent.trim(),
          'Expand all');
    });

    test('hide messages does not appear when no automated messages', () => {
      assert.isOk(element.$$('#automatedMessageToggleContainer[hidden]'));
    });

    test('scroll to message', () => {
      const allMessageEls = getMessages();
      for (const message of allMessageEls) {
        message.set('message.expanded', false);
      }

      const scrollToStub = sandbox.stub(window, 'scrollTo');
      const highlightStub = sandbox.stub(element, '_highlightEl');

      element.scrollToMessage('invalid');

      for (const message of allMessageEls) {
        assert.isFalse(message._expanded,
            'expected gr-message to not be expanded');
      }

      const messageID = messages[1].id;
      element.scrollToMessage(messageID);
      assert.isTrue(
          element.$$('[data-message-id="' + messageID + '"]')._expanded);

      assert.isTrue(scrollToStub.calledOnce);
      assert.isTrue(highlightStub.calledOnce);
    });

    test('scroll to message offscreen', () => {
      const scrollToStub = sandbox.stub(window, 'scrollTo');
      const highlightStub = sandbox.stub(element, '_highlightEl');
      element.messages = _.times(25, randomMessage);
      flushAsynchronousOperations();
      assert.isFalse(scrollToStub.called);
      assert.isFalse(highlightStub.called);

      const messageID = element.messages[1].id;
      element.scrollToMessage(messageID);
      assert.isTrue(scrollToStub.calledOnce);
      assert.isTrue(highlightStub.calledOnce);
      assert.equal(element._visibleMessages.length, 24);
      assert.isTrue(
          element.$$('[data-message-id="' + messageID + '"]')._expanded);
    });

    test('messages', () => {
      const author = {
        _account_id: 42,
        name: 'Marvin the Paranoid Android',
        email: 'marvin@sirius.org',
      };
      const comments = {
        file1: [
          {
            message: 'message text',
            updated: '2016-09-27 00:18:03.000000000',
            in_reply_to: '6505d749_f0bec0aa',
            line: 62,
            id: '6505d749_10ed44b2',
            patch_set: 2,
            author: {
              email: 'some@email.com',
              _account_id: 123,
            },
          },
          {
            message: 'message text',
            updated: '2016-09-27 00:18:03.000000000',
            in_reply_to: 'c5912363_6b820105',
            line: 42,
            id: '450a935e_0f1c05db',
            patch_set: 2,
            author,
          },
          {
            message: 'message text',
            updated: '2016-09-27 00:18:03.000000000',
            in_reply_to: '6505d749_f0bec0aa',
            line: 62,
            id: '6505d749_10ed44b2',
            patch_set: 2,
            author,
          },
        ],
        file2: [
          {
            message: 'message text',
            updated: '2016-09-27 00:18:03.000000000',
            in_reply_to: 'c5912363_4b7d450a',
            line: 132,
            id: '450a935e_4f260d25',
            patch_set: 2,
            author,
          },
        ],
      };
      const messages = [].concat(
          randomMessage(),
          {
            _index: 5,
            _revision_number: 4,
            message: 'Uploaded patch set 4.',
            date: '2016-09-28 13:36:33.000000000',
            author,
            id: '8c19ccc949c6d482b061be6a28e10782abf0e7af',
          },
          {
            _index: 6,
            _revision_number: 4,
            message: 'Patch Set 4:\n\n(6 comments)',
            date: '2016-09-28 13:36:33.000000000',
            author,
            id: 'e7bfdbc842f6b6d8064bc68e0f52b673f40c0ca5',
          }
      );
      element.comments = comments;
      element.messages = messages;
      const isAuthor = function(author, message) {
        return message.author._account_id === author._account_id;
      };
      const isMarvin = isAuthor.bind(null, author);
      flushAsynchronousOperations();
      const messageElements = getMessages();
      assert.equal(messageElements.length, messages.length);
      assert.deepEqual(messageElements[1].message, messages[1]);
      assert.deepEqual(messageElements[2].message, messages[2]);
      assert.deepEqual(messageElements[1].comments.file1,
          comments.file1.filter(isMarvin));
      assert.deepEqual(messageElements[1].comments.file2,
          comments.file2.filter(isMarvin));
      assert.deepEqual(messageElements[2].comments, {});
    });

    test('messages without author do not throw', () => {
      const comments = {
        file1: [
          {
            message: 'message text',
            updated: '2016-09-27 00:18:03.000000000',
            in_reply_to: '6505d749_f0bec0aa',
            line: 62,
            id: '6505d749_10ed44b2',
            patch_set: 2,
            author: {
              email: 'some@email.com',
              _account_id: 123,
            },
          },
        ]};
      const messages = [{
        _index: 5,
        _revision_number: 4,
        message: 'Uploaded patch set 4.',
        date: '2016-09-28 13:36:33.000000000',
        id: '8c19ccc949c6d482b061be6a28e10782abf0e7af',
      }];
      element.messages = messages;
      element.comments = comments;
      flushAsynchronousOperations();
      const messageEls = getMessages();
      assert.equal(messageEls.length, 1);
      assert.equal(messageEls[0].message.message, messages[0].message);
    });

    test('hide increment text if increment >= total remaining', () => {
      // Test with stubbed return values, as _numRemaining and _getDelta have
      // their own tests.
      sandbox.stub(element, '_getDelta').returns(5);
      const remainingStub = sandbox.stub(element, '_numRemaining').returns(6);
      assert.isFalse(element._computeIncrementHidden(null, null, null));
      remainingStub.restore();

      sandbox.stub(element, '_numRemaining').returns(4);
      assert.isTrue(element._computeIncrementHidden(null, null, null));
    });
  });

  suite('gr-messages-list automate tests', () => {
    let element;
    let messages;

    const getMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message');
    };
    const getHiddenMessages = function() {
      return Polymer.dom(element.root).querySelectorAll('gr-message[hidden]');
    };

    const randomMessageReviewer = {
      reviewer: {},
    };

    setup(() => {
      stub('gr-rest-api-interface', {
        getConfig() { return Promise.resolve({}); },
        getLoggedIn() { return Promise.resolve(false); },
      });
      element = fixture('basic');
      messages = _.times(2, randomAutomated);
      messages.push(randomMessageReviewer);
      element.messages = messages;
      flushAsynchronousOperations();
    });

    test('hide autogenerated button is not hidden', () => {
      assert.isNotOk(element.$$('#automatedMessageToggle[hidden]'));
    });

    test('autogenerated messages are not hidden initially', () => {
      const allHiddenMessageEls = getHiddenMessages();

      // There are no hidden messages.
      assert.isFalse(!!allHiddenMessageEls.length);
    });

    test('autogenerated messages hidden after hide button tap', () => {
      let allHiddenMessageEls = getHiddenMessages();

      element._hideAutomated = false;
      MockInteractions.tap(element.$.automatedMessageToggle);
      flushAsynchronousOperations();
      allMessageEls = getMessages();
      allHiddenMessageEls = getHiddenMessages();

      // Autogenerated messages are now hidden.
      assert.equal(allHiddenMessageEls.length, allMessageEls.length);
    });

    test('autogenerated messages not hidden after show button tap', () => {
      let allHiddenMessageEls = getHiddenMessages();

      element._hideAutomated = true;
      MockInteractions.tap(element.$.automatedMessageToggle);
      allHiddenMessageEls = getHiddenMessages();

      // Autogenerated messages are now hidden.
      assert.isFalse(!!allHiddenMessageEls.length);
    });

    test('_getDelta', () => {
      let messages = [randomMessage()];
      assert.equal(element._getDelta([], messages, false), 1);
      assert.equal(element._getDelta([], messages, true), 1);


      messages = _.times(7, randomMessage);
      assert.equal(element._getDelta([], messages, false), 5);
      assert.equal(element._getDelta([], messages, true), 5);

      messages = _.times(4, randomMessage)
          .concat(_.times(2, randomAutomated))
          .concat(_.times(3, randomMessage));

      const dummyArr = _.times(2, randomMessage);
      assert.equal(element._getDelta(dummyArr, messages, false), 5);
      assert.equal(element._getDelta(dummyArr, messages, true), 7);
    });

    test('_getHumanMessages', () => {
      assert.equal(
          element._getHumanMessages(_.times(5, randomAutomated)).length, 0);
      assert.equal(
          element._getHumanMessages(_.times(5, randomMessage)).length, 5);

      let messages = _.shuffle(_.times(5, randomMessage)
          .concat(_.times(5, randomAutomated)));
      messages = element._getHumanMessages(messages);
      assert.equal(messages.length, 5);
      assert.isFalse(element._hasAutomatedMessages(messages));
    });
  });
</script>
